/* 全局样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}

/* 头部样式 */
.header {
    background-color: #007BFF;
    color: white;
    text-align: center;
    padding: 20px 0;
}

.header h1 {
    margin: 0;
    font-size: 2.5em;
}

.header p {
    margin: 5px 0 0;
    font-size: 1.2em;
}

/* 错误内容样式 */
.error-content {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 50px;
}

.error-content img {
    width: 200px;
    height: auto;
    margin-right: 30px;
}

.error-message {
    max-width: 600px;
}

.error-message h2 {
    font-size: 2em;
    color: #dc3545;
    margin-bottom: 10px;
}

.error-message p {
    font-size: 1.1em;
    line-height: 1.6;
}

.back-button {
    display: inline-block;
    background-color: #007BFF;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
    transition: background-color 0.3s ease;
}

.back-button:hover {
    background-color: #0056b3;
}

/* 页脚样式 */
.footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 15px 0;
    position: fixed;
    bottom: 0;
    width: 100%;
}

.footer p {
    margin: 0;
}